Routing apparatus and method in a multi-hop relay cellular network

Inactive Publication Date: 2006-12-21
SAMSUNG ELECTRONICS CO LTD
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  • Abstract
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  • Claims
  • Application Information

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Benefits of technology

[0020] It is, therefore, an object of the present invention to provide a routing apparatus and method

Problems solved by technology

However, such system design is impossible with the current wireless network design scheme, i.e., the centralized scheme.
Therefore, in the wireless environment where there is a rapid change in traffic distribution and traffic quantity due to low configuration flexibility of the wireless network, the cellular network has difficulty in efficiently providing services.
Therefore, because the multi-hop relay cellular network is different from the Ad-hoc network in terms of selecting the optimal path, many routing technologies proposed or researched for the Ad-hoc network cannot be used for the multi-hop relay cellular network.
As described above, in the multi-hop relay cellular

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Embodiment Construction

[0035] Preferred embodiments of the present invention will now be described in detail with reference to the annexed drawings. In the following description, a detailed description of known functions and configurations incorporated herein has been omitted for clarity and conciseness.

[0036] The present invention provides a routing method for selecting an optimal path while minimizing a message load in a multi-hop relay cellular network.

[0037] In the present invention, a relay station (RS) transmits a specific control signal, for example, a preamble signal or a pilot signal, to a plurality of neighbor mobile stations (MSs) in order to allow the neighbor MSs to recognize the existence thereof. In addition, the RS transmits information indicating the quality of the optimal path to a base station (BS) to the MS along with the control signal, i.e., its preamble. Then the MS, receiving the RS preamble, can recognize the RS through the received preamble, and can also be aware of a channel q...

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Abstract

Provided is a routing method in a multi-hop relay cellular network including a mobile station (MS), a base station (BS), and at least one relay station (RS). One of RSs neighboring the MS measures quality of a link to the BS, generates link quality information using the measured link quality, and transmits the link quality information to the MS. The MS receives the link quality information from the RSs, selects an optimal path depending on the received link quality information, and transmits information on the selected optimal path to the BS.

Description

PRIORITY [0001] This application claims the benefit under 35 U.S.C. §119(a) of an application entitled “Routing Apparatus and Method in a Multi-Hop Relay Cellular Network” filed in the Korean Intellectual Property Office on Jun. 18, 2005 and assigned Serial No. 2005-52764, the entire contents of which are incorporated herein by reference. BACKGROUND OF THE INVENTION [0002] 1. Field of the Invention [0003] The present invention relates generally to a multi-hop relay cellular network, and in particular, to a routing apparatus and method for selecting an optimal path while minimizing a message load in a multi-hop relay cellular network. [0004] 2. Description of the Related Art [0005] These days, many people carry a number of digital portable electronic devices such as a notebook computer, a mobile phone, a Personal Digital Assistant (PDA), and an MPEG layer 3 (MP3) player. For convenience, the digital portable electronic devices will hereinafter be referred to as a mobile station (MS)....

Claims

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Application Information

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IPC IPC(8): H04L12/28H04Q7/00H04L12/701H04L12/725H04W16/26H04W74/08H04W84/12
CPCH04L45/00H04L47/26H04L47/14H04L47/10H04W40/12H04W40/22H04W8/04
Inventor CHO, JAE-WEONKANG, HYUN-JEONGJOO, PAN-YUHSON, JUNG-JELIM, HYOUNG-KYULEE, SUNG-JINLEE, MI-HYUNSON, YEONG-MOONLEE, GEUN-HO
Owner SAMSUNG ELECTRONICS CO LTD
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